Environmentally friendly anti-slip floor mat

ABSTRACT

This invention provides an environmentally friendly anti-slip floor mat, includes a leather, a polyurethane middle layer, a PU self-skinning layer and an anti-slip layer stacked together. The polyurethane middle comprises non-foam polyurethane. The PU self-skinning layer comprises foaming polyurethane. A plurality of through holes running through the anti-slip layer are located in the anti-slip layer. A surface of the PU self-skinning layer adjacent to the anti-slip layer further comprises a plurality of rivets pass through the through boles and extend to a surface of the anti-slip layer away from the PU self-skiing layer.

TECHNICAL FIELD

This invention relates to a floor mat, especially relates to an environmentally friendly anti-slip floor mat.

BACKGROUND

Nowadays, the PU (Polyurethane) self-skinning floor mat is directly foamed by the Polyurethane. Such PU self-skinning floor mat has the advantages of: good elasticity, better foot feels, ease to clean and environmentally friendly. However, this PU self-skinning floor mat cannot be directly used in a damp environment, such as kitchen, bathroom. etc., because the friction between the floor mat and the ground is too small, which lower the safety of the floor mat, in order to solve the problem of slipping, people tend to add an anti-slip foaming layer directly on the bottom surface of the PU self-skinning floor mat. The anti-slip foaming layer is made of choroprenerubber, styrenebutadienerubber, heat-shrink elastomer foaming layer or rubber foaming layer. Slip resistance of the floor mat gets enhanced by applying the anti-slip foaming layer. However, PU self-skinning and the anti-slip foaming layer comprises two different kinds of materials, which makes them have low binding capacity and hard to combine. The PU self-skinning and the anti-slip foaming layer are easy to separate from each other, which influences the quality and service life of the product.

Therefore, Inventor here makes a structural development to the existing PU self-skinning floor mat and invents an environmentally friendly and anti-slip floor mat adapted for damp condition such as kitchen and so on.

SUMMARY OF THE INVENTION

The object of this invention is to provide an environmentally friendly anti-slip floor mat. which has the advantages of good elasticity, better foot feels, anti-slip, ease to clean, environmentally friendly and good quality.

An environmentally friendly anti-slip floor mat comprises a leather, a polyurethane middle layer, a PU self-skinning layer and an anti-slip layer stacked together in that order;

Said polyurethane middle layer comprises non-foam polyurethane and mainly formed by curing isocyanate with a first polyether polyols intermixture, and the mass ratio of the isocyanate to the first polyether polyols intermixture is 100:17˜22.

Said PU self-skinning layer comprises foaming polyurethane and mainly formed by foaming an isocyanate with a second polyether polyols intermixture, and the mass ratio of the isocyanate to the second polyether polyols intermixture is 100:20˜50.

A plurality of through holes passing through said anti-slip layer are defined in the anti-slip layer.

A surface of said PU self-skinning layer adjacent to said anti-slip layer further comprises a plurality of rivets, said rivets pass through said through holes and extend to a surface of said anti-slip layer away from said PU self-skinning layer.

Furthermore, the thick of said leather ranges from 0.5 mm to 2.0 mm;

Furthermore, the thick of said polyurethane middle layer ranges from 8 mm to 20 mm;

Furthermore, the thick of said PU self-skinning layer without said rivets ranges from 8 mm to 20 mm;

Furthermore, the thick of said anti-slip layer ranges from 1 mm to 5 mm;

Furthermore, a shape of a cross section of said through holes on the anti-slip layer is round, rhombus, square, rectangular, triangular, parallelogram or a combination of thereof

Furthermore, the diameter of the cross section of said through holes ranges from 1 mm to 20 mm.

Furthermore, the second polyether polyols intermixture includes polyether polyols, crosslinking agent, composite catalysts, surfactant, foaming agent; wherein the mass ratio of the polyether polyols, crosslinking agent, composite catalysts, surfactant and foaming agent is 100:2˜8:1˜2.5:0.5˜1:10˜20.

Furthermore, the molecular weight of said polyether polyols is in a range from 1000 to 10000.

Furthermore, the molecular weight of said polyether polyols is about 5000.

Furthermore, said anti-slip layer is made of heat-shrink elastomer foaming layer or rubber foaming layer.

Furthermore, said rubber foaming layer is made of chloroprene rubber or styrene butadiene rubber.

Furthermore, a surface of said anti-slip layer away from said PU self-skinning layer further comprises an anti-slip texture.

Furthermore, said anti-slip texture is a plurality of convex structures arranged on the surface of said anti-slip layer away from said PU self-skinning layer.

Furthermore, the plurality of convex structures are concaved in the middle to form a plurality of suction cup structures.

Moreover, this invention also provides a method for making an environmentally friendly floor mat, the method comprises the following steps:

providing a mold comprising an upper body and a base;

disposing a leather on the base of the mold;

disposing an anti-slip layer on the upper body of the mold, wherein a plurality of through holes pass through the anti-slip layer are located in the anti-slip layer;

injecting a first mixture onto the surface of the leather and curing to form a polyurethane middle layer, wherein the first mixture comprises an isocyanate and a first polyether polyols intermixture, and a mass ratio of the isocyanate to the first polyether polyols intermixture is 100:17˜22;

injecting a second mixture onto the surface of the polyurethane middle layer to form a second mixture layer, wherein the second polyether polyols intermixture comprises isocyanate and a second polyether polyols intermixture, and a mass ratio of the isocyanate to the second polyether polyols intermixture is 100;20˜50;

covering the base and the upper body and foaming the second mixture layer to form the PU self-skinning layer;

opening the mold to obtain the anti-slip floor mat.

Furthermore, the isocyanate and the second polyether polyols intermixture are mixed under a temperature ranged from 20 to 30° C.

Furthermore, the second polyether polyols intermixture includes polyether polyols, crosslinking agent, composite catalysts, surfactant, foaming agent: wherein the mass ratio of the polyether polyols, crosslinking agent, composite catalysts, surfactant and foaming agent is 100:2˜8:1˜2.5:0.5˜1:10˜20.

Hereinafter, this invention will be described in detail combined with the drawings and embodiments.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 illustrates a schematic diagram of the environmentally friendly anti-slip floor mat.

FIG. 2 illustrates a schematic diagram of a PU self-skinning layer and an anti-slip layer of the environmentally friendly anti-slip floor mat of FIG. 1.

FIG. 3 illustrates a schematic diagram of the PU self-skinning layer of the environmentally friendly anti-slip floor mat of FIG. 2.

FIG. 4 illustrates a cross section of the anti-slip layer of the environmentally friendly anti-slip floor mat of FIG. 2.

FIG. 5 illustrates a schematic diagram according to one embodiment of anti-slip texture of the anti-sliplayer.

FIG. 6 illustrates a schematic diagram according to another embodiment of anti-slip texture of the anti-sliplayer.

FIG. 7 illustrates a flow chart of a process for making the anti-slip floor mat.

DETAILED DESCRIPTION OF THE INVENTION

Referring to FIG. 1, an environmentally friendly anti-slip floor mat 1, according to one embodiment, includes a leather 2, a polyurethane middle layer 3, a PU self-skinning layer 4 and an anti-slip layer 5 stacked in that order.

Leather 2 can be animal leather like sheep leather, cow leather, horse leather, pig leather, crocodile leather, etc. or other artificial leather or synthetic leather or combination thereof. Preferably the thick of leather 2 ranges from 0.5 mm to 2.0 mm.

Polyurethane middle layer 3 comprises non-foam polyurethane and mainly formed by curing an isocyanate and a first polyether polyols intermixture, and the mass ratio of the isocyanate to the first polyether polyols intermixture is 100:19˜21. During the producing process, the isocyanate and the first polyether polyols intermixture are grinding and mixing at a high speed to form a first mixture. A reaction between the isocyanate and the polyether polyols with the presence of a catalyst causes the curing and molding of the first mixture to form polyurethane middle layer 3. The first mixture has strong viscosity so that polyurethane middle layer 3 can stick to the surface of leather 2. When the mass ratio of the isocyanate to the first polyether polyols intermixture is about 100:19, polyurethane middle layer 3 is slightly softer compared to a hardness standard; when the mass ratio of the isocyanate to the first polyether polyols intermixture of the present is 100:20, polyurethane middle layer 3 conforms to the hardness standard; when the mass ratio of the isocyanate to the first polyether polyols intermixture is 100:21, polyurethane middle layer 3 is slightly harder compared to the hardness standard. Preferably, the thick of polyurethane middle layer 3 ranges from 8 mm to 20 mm.

PU self-skinning layer 4 comprises foaming polyurethane and mainly foamed by foaming an isocyanate and a second polyether polyols intermixture. The mass ratio of the isocyanate to the second polyether polyols intermixture is 100:20˜50. The second polyether polyols intermixture includes polyether polyols crosslinking agent, composite catalysts, surfactant, and foaming agent. Wherein the mass ratio of the polyether polyols, crosslinking agent, composite catalysts, surfactant and foaming agent is 100:2˜8:1˜2.5:0.5˜1:10˜20. The molecular weight of said polyether polyols is in the range of 1000˜10000. In one embodiment, the molecular weight of said polyether polyols is about 5000. Said isocyanate and the second polyether polyols intermixture are mixed under the temperature ranged from 20 to 30° C. Due to the similar material used in PU self-skinning layer 4 and polyurethane middle layer 3. PU self-skinning layer 4 will stick to polyurethane middle layer 3 while PU self-skinning layer 4 is foaming on the surface of polyurethane middle layer 3. The surface of PU self-skinning. layer 4 adjacent to anti-slip layer 5 further comprises a plurality of rivets 41. Preferably, the thick of anti-slip layer 5 ranges from 1 mm to 5 mm. Preferably, the diameter of the cross section of the through holes ranges from 1 mm to 20 mm.

A plurality of through holes 6 are located in anti-slip layer 5. A shape of a cross section of said through holes can be round, rhombus, square, rectangular, triangular, parallelogram or other irregular shape or a combination thereof Anti-slip layer 5 can be a heat-shrink elastomer foaming layer or a rubber foaming layer, more specially, the rubber foaming layer can be a chloroprene rubber layer or a styrene butadiene rubber layer. Rivets 41 pass through through holes 6 and extend to the surface of anti-slip layer 5 away from PU self-skinning layer 4. Preferably, the thick of anti-slip layer 5 ranges from 1 mm to 5 mm.

Moreover, the surface of anti-slip layer 5 away from PU self-skinning layer 4 further comprises an anti-slip texture. Said anti-slip texture are a plurality of convex structures 51 arranged on the surface of anti-slip layer 5 away from PU self-skinning layer 4. Convex structures 51 are concaved in the middle to form a plurality of suction cup structure.

Optionally, a thin foamed. PU layer (not shown) can be disposed between PU self-skinning layer 4 and anti-slip layer 5, said thin foamed PU layer can be glued to the anti-slip layer with glue. A plurality of through holes 6 passing through anti-slip layer 5 and the thin foamed PU layer are set on anti-slip layer 5.

Referring to FIG. 7, a method for making an environmentally friendly anti-slip floor mat, according to one embodiment, comprising the following steps:

S1: providing a mold comprising an upper body and a. base;

S2: disposing a leather on the base of the mold;

S2: disposing an anti-slip layer on the upper body of the mold, wherein a plurality of through holes pass through the anti-slip layer are located in the anti-slip layer;

S4: injecting a first mixture onto the surface of the leather and curing to form a polyurethane middle layer, wherein the first mixture comprises an isocyanate and a first polyether polyols intermixture, and a mass ratio of the isocyanate to the first polyether polyols intermixture is 100:17˜22;

S5: injecting a second mixture onto the surface of the polyurethane middle layer to form a second mixture layer, wherein the second polyether polyols intermixture comprises isocyanate and a second polyether polyols intermixture, and a mass ratio of the isocyanate to the second polyether polyols intermixture is 100:20˜50;

S6: covering the base and the upper body, and foaming the second mixture layer to form the PU self-skinning layer;

S7: opening the mold to obtain the anti-slip floor mat.

In S4, injecting a first mixture onto the surface of leather 2, wherein, the first mixture comprises the isocyanate and the first polyether polyols intermixture grinding and mixing at a high speed. The mass ratio of the isocyanate to the first polyether polyols intermixture is 100:17˜22.The first mixture has strong viscosity so that polyurethane middle layer 3 can stick to the surface of leather 2.

In S5, injecting a second mixture onto the surface of polyurethane middle layer 3, wherein the second mixture comprises an isocyanate and a second polyether polyols intermixture. The mass ratio of the isocyanate to the second polyether polyols intermixture is 100:20˜50. The second polyether polyols intermixture includes polyether polyols, crosslinking agent, composite catalysts, surfactant, and foaming agent. Preferably, the mass ratio of the polyether polyols, crosslinking agent, composite catalysts, surfactant and foaming agent is 100:2˜8:1˜2.5:0.5˜1:10˜20.

In S6, due to the similar material used between the second mixture and polyurethane middle layer 3, PU self-skinning layer 4 will stick to polyurethane middle layer 3 firmly.

After covering the base and the upper body of the mold, the second mixture will foamed to form PU self-skinning layer 4. Because the similar material are used in polyurethane middle layer 3 and PU self-skinning layer 4. PU self-skinning, layer 4 will stick to polyurethane middle layer 3 firmly. At the same time, the second mixture would expand during the foaming process, part of the second mixture will pass through through holes 6 and extend to the surface of anti-slip layer 5 away from the second layer to form a plurality of rivets 41. Therefore, PU self-skinning layer 4 would firmly combine with anti-slip layer 5 via rivets 41.

Although the present invention has been described with reference to the preferred embodiments, it is apparent to those skilled in the art that a variety of modification and changes may be made without departing from the scope of the patent for invention which is intended to be defined by the appended claims. 

I claim: 1-9. (canceled)
 10. An environmentally friendly anti-slip floor mat, comprising: a PU self-skinning layer, and an anti-slip layer; the PU self-skinning layer comprises foaming material; a plurality of through holes passing through the anti-slip layer; and wherein the polyurethane middle layer further comprises a plurality of rivets, the rivets pass through the through holes and extend to the surface of the anti-slip layer away from the PU self-skinning layer.
 11. The environmentally friendly anti-slip floor mat of claim 10, wherein the floor mat further comprises a leather and a polyurethane middle layer stacked on a surface of the PU self-skinning layer, wherein the polyurethane middle layer comprises non-foam material.
 12. The environmentally friendly anti-slip floor mat of claim 11, wherein the polyurethane middle layer is formed by curing an isocyanate and a first polyether polyols intermixture according to a mass ratio 100:17˜22.
 13. The environmentally friendly anti-slip floor mat of claim 11, wherein the PU self-skinning layer is formed by foaming an isocyanate and a second polyether polyols intermixture according to a mass ratio 100:20˜50.
 14. The environmentally friendly anti-slip floor mat of claim 13, wherein the second polyether polyols intermixture includes polyether polyols, crosslinking agent, composite catalysts, surfactant, and foaming agent, wherein the mass ratio of the polyether polyols, crosslinking agent, composite catalysts, surfactant and foaming agent is 100:2˜8:1˜2.5:0.5˜1:10˜20.
 15. The environmentally friendly anti-slip floor mat of claim 11, wherein a shape of a cross section of the through boles is selected from a group consisting of round, rhombus, square, rectangular, triangular, parallelogram or a combination thereof.
 16. The environmentally friendly anti-slip floor mat of claim 11, wherein the anti-slip layer is made of heat-shrink elastomer foaming layer or rubber foaming layer.
 17. The environmentally friendly anti-slip floor mat of claim 16, wherein the rubber foaming layer is made of chloroprene rubber or styrene butadiene rubber.
 18. The environmentally friendly anti-slip floor mat of claim 11, wherein a surface of the anti-slip layer away from the PU self-skinning layer further comprises an anti-slip texture, the anti-slip texture comprises a plurality of convex structures located on the surface of said anti-slip layer away from the PU self-skinning layer.
 19. The environmentally friendly anti-slip floor mat of claim 18, wherein the plurality of convex structures are concaved in the middle to form a plurality of suction cup structures.
 20. The environmentally friendly floor mat of claim 11, wherein the thick of the leather ranges from 0.5 mm to 2.0 mm; the thick of the polyurethane middle layer ranges from 8 mm to 20 mm; the thick of the layer without the rivets ranges from 8 mm to 20 mm; the thick of the anti-slip layer ranges from 1 mm to 5 mm.
 21. The environmentally friendly anti-slip floor mat of claim 15, wherein the diameter of the cross section of the through holes ranges from 1 mm to 20 mm.
 22. A method for producing an environmentally friendly anti-slip floor mat, comprising the steps of: providing a mold comprising an upper body and a base: disposing a leather on the base of the mold, disposing an anti-slip layer on the upper body of the mold, wherein a plurality of through holes pass through the anti-slip layer are located in the anti-slip layer; injecting a first mixture onto the surface of the leather and curing to form a polyurethane middle layer, wherein the first mixture comprises non-loam polyurethane; injecting as second mixture onto the surface of the polyurethane middle layer to form a second mixture layer, wherein the second mixture comprises foaming polyurethane; covering the base and the upper body, and foaming the second mixture layer to form a PU self-skinning layer; opening the mold to obtain the anti-slip floor mat.
 23. The method of claim 22, wherein the polyurethane middle layer is formed by curing an isocyanate and a first polyether polyols intermixture according to a mass ratio of 100:17˜22.
 24. The method of claim 22, wherein, the PU self-skinning layer is formed by foaming an isocyanate and a second polyether polyols intermixture according to a mass ratio of 100:20˜50.
 25. The method of claim 24, wherein the second polyether polyols intermixture includes polyether polyols, crosslinking agent, composite catalysts, surfactant, foaming agent; wherein the mass ratio of the polyether polyols, crosslinking agent, composite catalysts, surfactant and foaming agent is 100:2˜8:1˜2.5:0.5˜1:10˜20.
 26. The method of claim 25, wherein the molecular weight of said polyether polyols is
 5000. 27. The method of claim 22, wherein the anti-slip layer is made of chloroprene rubber or styrene butadiene rubber.
 28. The method of claim 22, wherein the surface of the anti-slip layer which is away from the PU self-skinning, layer further comprises an anti-slip texture, the anti-slip texture comprises a plurality of convex structures located on the surface of said anti-slip layer away from the PU self-skinning layer.
 29. The method of claim 28, wherein the plurality of convex structures are concaved in the middle to forma plurality of suction cup structures. 